IBM Systems Magazine, Mainframe Edition - January/February 2011 - 38

What happens if this critical environmental factor isn’t included in the decision framework? The business will have inaccurate picture of the fit and cost implications of scaled-out technology for a particular workload or application. Users must also realize that change itself has costs and risks, thus the need for a comprehensive comparison of alternatives based on as many of the technical, functional and nonfunctional decision-making criteria as possible. What is a thoughtful business to do? It’s impossible to quantify every decision factor in terms of hard cost and then include these factors in a capital budgeting and businesscase analysis. On the other hand, a business can’t afford to ignore these factors either. Figure 1 (below) identifies several decision topics that have appeared in recent studies.

Customers can then incorporate the weighted-guidance model shown in Figure 2 (page 40) in their decision framework. The IBM study team provides the model along with training so it can be reused with future decisions about the best platforms for new applications.

STEP 1 Kick-off
As with any IT-infrastructure study, we begin by defining the scope, objectives and expectations, roles, logistics and deliverables. Then we review the fit-for-purpose concepts and theory (see “Key Fit-for-Purpose Concepts and Theory,” page 39). This includes a review of each of the components of a platform-decision framework, for example: technical platform-performance characteristics and company-specific and local factors (e.g., skills, technology adoption levels, management processes and organizational and political considerations). Organizations also need to consider:

Mapping the Findings
The study engagement includes a s s i s t a n c e a n d i n f o r m at i o n collection templates to identify an organization’s technology platforms and decision criteria. The Polaris study team then conducts on-site interviews and incorporates their team’s findings into a matrix that illustrates each platform’s relative strength across each of the identified decision criteria. The primary steps of the methodology are:

hÁISV support issues by application and platform hÁ The scale and importance of the application to the business

Polaris Workshop
IBM is helping customers assess their IT needs and choices with a practical and cost-effective analysis that considers important, nonquantitative decision criteria along with costs and technical functional requirements. The approach, known as the Polaris Fit-for-Purpose Workshop, is based on the Scorpion methodology and its tools, models and templates. For more on the Scorpion Study methodology, see “Overcoming IT Challenges” (www.ibmsystemsmag. com /ma i nf r a me /ju ly aug u st 0 9 / trends/25858p1.aspx). Polaris Fit-for-Purpose Workshop takes an application or workloadoriented approach and provides guidelines to minimize guesswork and assumptions. The workshop incorporates the latest trends in the fit-for-purpose theory and its multilayer framework for platform-decision support, but also concentrates on a weighted guidance model.

Figure 1
IT Value Analysis and Critical Decision Categories Selecting a Platform
Scale Deployment Model Time Horizon ISV Support Non-Functional Requirements

Technology Adoption Level

System z

x86

Geographic Considerations Power, Cooling, Floor Space Constraints

Platform Architecture

UNIX/Power

Politics Skills TCO Model

Strategic Direction and Standards

38

JA N UA RY/ FE B RUA RY 2 011

ibmsystemsmag.com/mainframe



IBM Systems Magazine, Mainframe Edition - January/February 2011

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe Edition - January/February 2011

IBM Systems Magazine, Mainframe Edition - January/February 2011
Table of Contents
On the Web
Editor's Desk: Time is Expensive
Data Display: Utilities, Users and Devices Are Getting Energy Wise Are Getting Energy Wise
Think Smarter: Smart Storage Solutions Let You Have It All
Insider: Energy Efficiency is More Than an Optimized Server
Trends: Case Study Shows IBM’s zEnterprise System Reduces Costs Across the Business
Moving Forward: UniGroup Inc. develops a mainframe-based Web tool to create a more flexible business model.
Tipping the Scale: Labor expenses should influence IT acquisition decisions.
Four-Star Advantage: The Polaris Workshop maps out a custom platform strategy.
Tips and Techniques: Reduce Resource Consumption on DB2 10 for z/OS
Solutions
Advertisers' Index
Stop Run: System/360 Pioneer Fred Brooks Teaches Design That Still Shapes Computing
IBM Systems Magazine, Mainframe Edition - January/February 2011 - IBM Systems Magazine, Mainframe Edition - January/February 2011
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Cover2
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 1
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 2
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 3
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Table of Contents
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 5
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 6
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 7
IBM Systems Magazine, Mainframe Edition - January/February 2011 - On the Web
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 9
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 10
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 11
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Editor's Desk: Time is Expensive
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 13
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Data Display: Utilities, Users and Devices Are Getting Energy Wise Are Getting Energy Wise
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 15
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Think Smarter: Smart Storage Solutions Let You Have It All
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 17
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 18
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 19
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Insider: Energy Efficiency is More Than an Optimized Server
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 21
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 22
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 23
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Trends: Case Study Shows IBM’s zEnterprise System Reduces Costs Across the Business
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 25
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 26
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 27
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Moving Forward: UniGroup Inc. develops a mainframe-based Web tool to create a more flexible business model.
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 29
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 30
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 31
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Tipping the Scale: Labor expenses should influence IT acquisition decisions.
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 33
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 34
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 35
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Four-Star Advantage: The Polaris Workshop maps out a custom platform strategy.
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 37
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 38
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 39
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 40
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 41
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Tips and Techniques: Reduce Resource Consumption on DB2 10 for z/OS
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 43
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 44
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Solutions
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Advertisers' Index
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Stop Run: System/360 Pioneer Fred Brooks Teaches Design That Still Shapes Computing
IBM Systems Magazine, Mainframe Edition - January/February 2011 - 48
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Cover3
IBM Systems Magazine, Mainframe Edition - January/February 2011 - Cover4
IBM Systems Magazine, Mainframe Edition - January/February 2011 - RF1
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